Preserving jar opener and closer



Oct. 23, 1945. u. G. DENSTEN 2,387,651

' v PRESERVING JAR OPENER AND CLOSER File d Jan. 27, 1944 F 4 ,4 mwi/vm? l6 V "In/E58" Z/Z sses 6 flezzsf 1 y a'y from 2 Patented Oct. 23, 1945 UNITED STATES PATENT OFFICE PRESERVING JAR OPENER AND CLOSER Ulysses G. Densten, Quakertown, Pa. Application January 2'7, 1944, Serial No. 519,881

1 Claim.

Objects of the present invention are: (1) to facilitate and insure the proper and tight application of screw-type covers to glass preserving jars even when the contents of the jars is so hot that the jars and covers may not be comfortably and safely handled with the bare hands, as well as to facilitate the subsequent opening of the jars or removal of the covers; (2) to provide simple, reliable and comparatively inexpensive and durable means easily understood and manipulated by the ordinary housewife or like person for the accomplishment of the results above indicated; (3) to provide simple, adjustable means for insuring proper frictional engagement of the device with the cover of the jar without danger of injury to the cover; and (4) to provide a device of the character mentioned which can be constructed from small pieces of plywood such as constitute waste in the manufacture of, for example, airplane parts.

Other objects of the invention will appear from the following description at the end of which the invention will be claimed.

Generally stated, the invention comprises the improvements hereinafter described and finally claimed.

In the following description, reference will be made to the accompanying drawing forming part hereof and in which:

Figure 1 is a top or plan view of a device embodying features of the invention and constructed and arranged for use in connection with a glass jar;

Figure 2 is a side view of the same;

Figure 3 is a view similar to Figure 1 illustrating a modification of the device applicable to the screw-type cover of the jar; and

Figure 4 is a view partly in section and partly in elevation illustrating a glass jar and showing the invention in application thereto.

Referring to the drawing, l is a centrally perforated disk.v It is shown as provided with a circular upstanding shoulder l commensurate in diameter with the diameter of a jar and, if desired, the shouldermay extend clear through the disk. 2 is a ring of substantially the same outside diameter as the disk and it is arranged in confronting relation to the disk and is spaced therefrom. 3 is a fillet in the form of a segment of the ring 2 and it is mounted between the disk I and the ring 2. A pair of projecting handles 4 and 5 are disposed diametrically opposite to the fillet 3. One of the respective end portions of the handles is arranged between the disk I and the ring 2. The handles are of substantially the same fillet. At least one of the handles, the handle 4, r

is eccentrically pivoted and is provided adjacent thickness, or of slightly less thickness, than the its end portion with a rounded clamping jaw 6.

In the modification shown in Figure 1, both of the handles are pivoted and respectively provided with a clamping jaw; whereas, in Figure 3, the handle 5 is rigidly mounted. 1 is a radially disposed screw which penetrates the fillet (Fig. 3) and presents its end for co-operation with ya clamping jaw.

Referring to Figure 4, the device shown in Figure 1 is of appropriate size for the reception of the bottom part of the jar a and is applied thereto in the manner shown. The device of Figure 3 is applied to the screw-type top or cover I) as shown in Figure 4. When the contents of the jar a is hot, the handles 4 and 5 of the device shown at the bottom of the jar are pressed toward each other by one hand of the operator, with the result that the jaws 6 hold the jar against rotation. The handles of the device shown in Figure 3 are similarly pressed together by the other hand of the operator, with the result that the jaw 6 and the inner end of the screw 1 firmly grasp the cap or cover 12; then, by a motion of rotation of the hands, the cap may be readily and properly applied to or removed from the jar.

Plywood, or perhaps plastic or fiber, is an appropriate material from which to make the described device because they do not readily conduct heat, and plywood has special advantages in that pieces large enough for the construction of the device are waste in the manufacture of, more particularly, parts of airplanes.

It will be obvious that modifications may be made in details of construction and arrangement and in matters of mere form, hence the invention is not limited thereto or perhaps than as the appended claim may require.

I claim:

A hand tool made of the plywood and adapted for use in applying and removing the screw-type covers of preserving jars and comprising, a disk, a ring of substantially the same outside diameter as the disk and arranged in confronting relation thereto and spaced therefrom, a fillet in the form of a segment of the ring and mounted between the disk and the ring, and a pair of handles disposed diametrically opposite to the fillet and having one of their respective end portions leccentrically pivoted between the disk and ring and provided with a rounded portion constituting a clamping jaw.

ULYSSES G. DENSTEN. 

